Enchant creature
Enchanted creature gets +2/+0 and has trample.
When this Aura is put into a graveyard from the battlefield, return it to its owner's hand.
Flying
This creature gets +2/+2 for each Aura attached to it.
: Return this card from your graveyard to the battlefield. You may put an Aura card with mana value X or less from your hand onto the battlefield attached to it. If you don't, exile this creature.
, Sacrifice a black or artifact creature: Add an amount of 
equal to the sacrificed creature's mana value.
